> ## Documentation Index
> Fetch the complete documentation index at: https://developer.fin.com/llms.txt
> Use this file to discover all available pages before exploring further.

# October 9, 2026

> Changelog for October 9, 2026

## ✨ New Features

### Supported Rails and Currencies

1. **USDT, Solana, and Base Now Supported**
   USDT is now live, and Solana and Base are supported alongside Ethereum and Polygon. USDC and USDT are available on all four networks for ACH, Fedwire, and SWIFT payins, and for Fedwire and SWIFT payouts. SPEI, BDT, and PKR coverage is unchanged. See [Supported rails and currencies](/guides/coverage/supported-rails-and-currencies) for the full combination tables.

   | Endpoint | Fields |
   | - | - |
   | `POST /v3/customers/{customer_id}/virtual-accounts` ([Create Virtual Account V3](/api-reference/virtual-accounts/create-virtual-account-v3)) | `destination.currency`, `destination.rail` |
   | `POST /v3/beneficiaries` ([Create Beneficiary V3](/api-reference/beneficiaries/create-beneficiary-v3)) | `deposit_instruction.currency`, `deposit_instruction.rail`, `refund_instruction.currency`, `refund_instruction.rail` |


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